Liquid dispensing



G. W. STEDWELL March 22 1932 LIQUID DIsPENsING l Re. 18,396 OriginalFiled Dec. 3. 1928 3 Sheets-Sheet' l xNvENToR' A oRNEY G. W. STEDWELLLIQUID DISPENS ING Re. 18,396 5 Sheets-Sheet 2 March 22, 1932.

, 'original Filed Deb. 3, 1928 G. W. STEDWELL LIQUID DISPENSING March22, 1932.A l Re. 18,396 l Original Filed De. 3, 1928 3 Sheets-Sheet 5 limi-i' INVENTOR Reissued Mar. 22, 1932 UNITED STATES PATENT OFFICEGEORGE W. STEDWELL, F BROOKLYN, NEW YORK, ASSIGNOR, BY DIRECT AND MESNEASSIGNMENTS, T0 SHERWELL CONTROLS, INC., 0F NEW YORK, N. Y., A CORPORA-TION 0F NEW YORK LIQUID DISPENSING Original No. 1,713,102 dated May 14,1929, Serial No. 323,411, iled December 3, 1928. Application for lreissue filed May 13, 1931.

This invention relates particularly, though not exclusively, to thedelivery of gasoline and the like.

Special objects of the invention are to provide apparatus for thepurpose, which will be simple, safe, positive and operable to accu--rately and speedily deliver various required amounts of the liquid.

Further objects of the invention are to enable the delivery beingentirely controlled at the discharge end of the apparatus. l

The foregoing and other desirable objects are attained by the novelfeatures. of construction, combination and relation of parts,hereinafter described and illustrated by way of example in theaccompanying drawings.

In the dra-wings, Fig. 1 is a broken side view of the discharge hose endof a gasoline delivery system having features of the inventionincorporated therein; Fig. 2 is an enlarged and broken sectional viewillustrating details of the nozzle valve and Bowden wire control; Fig. 3is a smaller view similar to Fig. 1 illustrating a construction in whichthe Bowden wire control is contained entirely within the hose; Fig. 4 isa view of the combination delivery valve and electric switch, the formergoverning flow to the hose and the latter controlling an electric pumpor valve governin flow in the delivery line; Figs. 5, 6 and are brokensectional views illustrating the timed relation of the valve and switch;Fig. 8`is an enlarged cross-sectional view of the hose showing theweaving of the Bowden wire into the body structure of the hose; Figs. 9and 10 are broken detail views illustrating modifications in whichoperation of the controls is eifected by simply pulling on the hose,Fig. 11 is a broken part 40 sectional view showing-the invention appliedto an air pressure system of delivery.

In Fig. 1 a delivery or supply line is indicated at 12 having a deliveryvalve 13 therein and terminating in aA flexible discharge hose 14 endingin a suitable discharge nozzle 15.

The liquid to be delivered is furnished the delivery line from asuitable supply, such as a storage tank and an electrically driven pumpas in Fig. 4 of Patent 1,685,036 or from Serial No. 537,161.

a pressure tank as in Fig. 5 of the same patent, or as in Fig. 11 ofthis ca se from a tank 16 from which the liquid is expelled bycompressed air.

The delivery valve 13 is shown in Fig. 1 as of the rotary plug type, butit should be understood that other 'forms of valves may be employed, theone illustrated being convenient and suitable for the purpose, providingas it does a shaft 17 by which it may be operated and which may becoupled as indicated at 18 in Fig. 4 to operate an electric controllingswitch 19.

The final delivery is shown as controlled by a valve 20 operating in avalve casing 21 in the nozzle and having a projecting stem 22 engaged bya valve opening hand lever 23 pivoted on the nozzle at 24.

The movement of the nozzle valve hand lever 23 is utilized to eii'ectthe operation of the delivery valve and control switch through themedium of a Bowden wire flexible mechanical connection 25 engaged withan extension 26 of the hand lever and extending along the hose through atubular guard or cover 26 to one arm of the bell crank lever 27 on theend of delivery valve shaft 17. The other arm of this bell crank leveris shown engaged by a valve closing spring 28 which is heavy enough toclose the delivery valve and also to pull the Bowden wire back throughits aexibie Sheath when the grip on the hand lever is released.

A rigid guide 29 is shown formed on the side of the nozzle structure forthe lower end of the Bowden-wire, directing the same in a substantiallystraight line to the lever 26, which is shown doubled in under the valvecasing, to shorten the exposed length of Wire. For adjustment purposes,the end of the Wire is shown as having a turn-buckle connection in theform of a rotatable member 30 having a screw engagement in the angledend 31 of the lever 26 and secured in its position of adjustment by locknut 32.

Another special feature of the Bowden wire connection thus far describedis that the sheath of the same is built into the structure of the hose,so as tobe in eiect an integral part of the same. This is shown asaccomfitted at 37 to grip the bulge ofthe Bowden wire, so as-to hold thelatter against tendencies to twist or spiral in the hose. The Bowl denwire is thus by its incorporation in the vhose and by means of the endguide and clamps held in substantially parallel relation with the axisof the hose so that the length of the wire will not be varied to anyobjectionable extent by the bending or twisting of the hose.

Another way of incorporating the Bowden wire into the hose isillustrated in Fig. 3. I n this case, the Bowden wire designated 25a 1splaced inside the hose, being shown as spiraled so as to lay against theinside wall ofthe hose and to accommodate itself to the bending of thehose without objectionably varying in length, the sheath 26a of the wirebelng suitably held in the end fittings of the hose as indicated by theclips 38. In this case, inside connections can be made at both ends ofthe Bowden wire. Thus, at the nozzle end the Wire is 'shown connectedwith one arm of a bell crankV lever 39 mounted in the nozzle valvecasing 21a in position with its other arm beneath the lower end of thevalve stem 22a so that each time the hand lever 23a is operated, theopening of the valve will effect a pull on the Bowden wire. At theopposite end the wire is connected with the valve lever 27 a within thecasing 13a of this valve, which for the purpose is made to enclose thevalve operating lever as indicated at 40.

The fully enclosed type of Bowden wire control shown in Fig. 3 hascertain advantages, particularly as regards the enclosure and mechanicalprotection of the Bowden wire and its connections. The Bowdenwireconstituting the motion transmitting mechanism connecting the remotelyrelated nozzle valve and switch or switch and valve may be considered ineffect a plunger like means.

Instead of incorporating a Bowden wire f in the hose, the hose itselfmay be utilized as a form of flexible mechanical connection foroperating the delivery valve mechanism. Thus as shown in Fig. 9, anextensible or telescopic section such as the sylphon or corrugatedmetallic bellows 41 may be interposed as a section of the hose lengthpermitting expansion or extension of the hose and a part of the hosebeyond or below such extensible portion, such as the collar 42 may beconnectedwith the valve lever 27 b by means of a link 43. This bellowssection .is shown telescopically secured over an extension sleeve 44 ofthe valve head 13?) and `the valve closing spring 28a is made strongenough in this instance to effect both closing of the valve and thecollapsing movement of the hose section when pull on the hose isreleased.

In another embodiment of this hose pull delivery valve, shown in Fig.10, the link 43a connectedwith the valve lever, is engaged with a collaror loop 45, or otherwise hooked aboutl the down-hanging upper endportion 14a of the hose, so that an outer pull on thev hose in thedirection of the arrow will open the valve. In ythis case, also thevalve closing spring 28a effects a retractive movement of the hoseenabling the operator to control the delivery valve entirely by pullingor releasing pull on the hose. This last construction, it may beobserved, may be applied to existing filling stands.

Stops indicated at 46 may be provided to limit the valve opening'an-dclosing movements and also the extensive and retractive movements of thehose.

The delivery valve and the switch which controls the supply of liquidinto the delivery line may have a timed relation suchthat the liquidwill be started intothe line before the valve opens, so as to be readyfor instant delivery the moment the valve permits and such that thevalve will close before the switch is thrown off, to make sure that thedelivery of liquid will be fully completed. This tlme relation of valveand switch is illustrated in Figs. 5, 6 and 7, and as there shown isaccomplished by making the coupling 18 between valve stem and switch asa lost motion connection by which the switch is thrown on before thevalve opens and thrown olf after the valve closes-seev particularlyFigs. 5 and 7 The Bowden wire or pull hose mechanical controls may beapplied to air pressure or other forms of delivery systems. For example,an air pressure delivery system is illustrated in Fig. 11 in which theBowden wire is utilized, the compressed air being there shown assupplied from a tank 47 through pipe 48 and byway of valve 49 and apressure line 50 to the top of the pressure tank 16, which receivesliquid from a storage tank by gravity and check valve or otherwise, theliquid flowing from this tank by delivery line 12, governed by theBowden wire conl trol, which in this case operates both the air valve 49and the special delivery valve 51. For operating both, these valves, theBowden wire is shown connected with`a triple armed bell crank 52 havingone arm engaged with the stem 53 of the air valve and the extra or thirdarm connected by pull link 54 with the push type in which the stem 56 issealed tight l in a leak-preventing sylphon 57. The inner end of thisstem is shown as carrying a valve 58, which can close against a seat 58in the end of the yhollow sliding valve body 6() after it has pushed inthe valve stem 61 sliding in the bore of the tubular valve body. Valvestem 61 carries a spring pressed valve 62 seating in the opposite end ofthe sliding valve body 60, so that in this first part of the movementvalve 58 opens valve 62 admitting liquid under pressure in the deliveryline to the back end of the sliding valve body 60, balancing the latterso'as to reduce the force required to shift this main valve from itsseat 63. This lost motion arrangement thus effects first the valving ofpressure behind the main delivery valve land then the opening of saidmain delivery valve.

Passages 64 are shown about the stem of the starting valve 58 admittingliquid from the back of the main valve into the sylphon, these samepassages permitting discharge of liquid from within the sylphon as thesame is compressed or contracted. This liquid then serves in effect as ahydraulic piston, as valve 58 seats in the end of the main valve 60aiding in transmission of the opening movement to said main valve 60. Asthe main valve opens, the liquid in the delivery line flows onthroughthe meter 65 and out the hose under control at all times of thenozzle valve 21.

rlhe air valve at 49 is shown as of the pressure-relief type involvingan extra reversely faced valve element 66 on the valve stem53 closingagainst seat 67 to shut ofi' the vent line 68. Delivery is effected byopening valve 49 and when delivery is completed, valve 49 yis closed andvalve 66 is opened thus permit-ting air pressure in tank 16 to vent backthrough line 50, 68.

The Bowden wire control in the case last described thus effects a tandemoperation of pressure supply valve mechanism and delivery valvemechanism, and it will be plain from the disclosure that the same may beapplied to other types or forms of dispensing apparatus.

As the Bowden wire is incorporated within and anchored in the flexiblehose, it is in effect a unitary portion of the hose, adding noappreciable bulk or projections on the hose, flexing freely with thehose and operating in all thediff'erent positions of the hose. Theincorporationof this Bowden wire in the hose also providesmchanicalprotection for the Bowden wirefassuring proper operation of the sameevenunder conditions of abuse.

In order that the entire control mechanism may belocke'd when not inuse, a padlock is indicated at 69 in Fig. 1, having its hasp passedthrough aligning openings in a stationary lug -7 0A on top of the nozzleand a locking lug .71 on the underside of the hand grip. Thisarrangement locks the hand grip and through that the nozzle valve, thefiexible operating connections and the control mechanism at. the head orentry end of the hose. The location of the hand grip on top of thenozzle and the extension of the part 26 below or to the underside of thenozzle forms a compact, convenient and easily operating structure.

What is claimed is:

l. Dispensing apparatus of the character disclosed, comprising aflexible hose, a flexible Bowden wire housed and contained within thestructure of said hose and thereby held to flex with the hose and beconcealed and protected by the hose structure and means for holding theenclosed Bowden Wire against displacement in the hose structure.

2. In dispensing apparatus, a hose constructed of multiple layers ofmaterial, a Bowden wire encased between layers of said hose material andfixed guide means for the end portion of the Bowden Wire.

3. A liquid dispensing hose made up of multiple layers of material, afiexible tubular sheath encased between layers of said material and aflexible pull wire extending through said encased sheath.

4. A liquid dispensing hose made up of multiple layers of material, aflexible tubular sheath encased between layers of said material, aflexible pull wire .extending through said encased sheath, said. wireprojecting from the encased sheath and a fixed guide in line with theencased sheath and about said projecting portion of the wire.

5. Liquid dispensing apparatus, comprising in combination a deliveryhose, a nozzle valve controlling dischargeA therefrom, a hand lever foroperating said nozzle valve, a Bowden wire connected to be operated bysaid hand lever and extending from said nozzley valve back along thehose and an electric switch for controlling apparatus of-said liquiddelivery system having an operative connection with the rearward end ofsaid Bowden Wire, so as tobe actuated thereby in conjunction with theoperation of the nozzle valve. y I

6. In combinatio-n with a liquid delivery hose having a nozzle valve,control means at the entry end of said hose, operating means for thenozzle valve, a Bowden wire flexible drive connection from said nozzlevalve actuating means extending back along the hose to said controlmeans and means vfor varying the effective length of the Bowden Wireconnection to time the nozzle valve and the control means in the desiredoperating relation.

7. In combination with a iexible delivery hose, a fiexible mechanicaloperating connection incorporated in the structure and housed within thebody of said hose, so as to be concealed and protected thereby, fixedguiding means within the hose structure for the opposite ends of saidflexible mechanical operating connection to thereby confine opposite endportions of the flexible mechanical oo nnection to longitudinal movementin defimte paths and control means at the inlet and de-l ivery ends ofsaid hose and connected with opposite end portions of said concealedflexible operating connections.

8. Dispensing hose having a nozzle valve,

a hand grip mounted on top of said hose for v operating said nozzlevalve and having an extension projecting to the underside of the hose,control means at the entry end of the hose and aflexible mechanicalconnection positively guided in line with and connected to saidextension at the underside of the hose, said connection extending backalong the hose from said hand grip.

9. A flexible dispensing hose, a co-extenysive flexible Bowden wirecontrol carried thereby and adjustable clamps about the flexibleportions of said hose, gripping the same and holding the Bowden wirecontrol pgainst turning relative to the body of the lose.

l0. In liquid dispensing systems, a delivery line, a hose connectedtherewith, a delivery controlling valve in said delivery line, `anelectric control switch and operating l means for closing the switch andopening the delivery valve after the switch is closed and for openingthe switch after the delivery valve is closed. I i

11. In liquid dispensing systems, a delivery line, an electric switchfor controlling part of the delivery apparatus, a valve in the deliveryline, a hose connected with said valve, flexible mechanical connectionscarried by saidhose for effecting opening and closing movements of saidvalve and delayed action connecting means between said valve vand switchfor opening the valve after the switch is closed and for opening theswitch after the valve is closed.

12. Liquid dispensing apparatus, comprising in combination a deliveryhose, a nozzle valve controlling discharge therefrom, a hand lever foroperating said nozzle valve, a Bowden wire connected to be operated bysaid hand lever and extending from said nozzle valve back along thehose, an electric switch for controlling apparatus of said liquiddelivery system having an operative connection with the rearwardl end ofsaid Bowden wire, so as to be actuated thereby in conjunction withtheoperation of the nozzle valve, a liquid delivery line connected with theHexible hose and a valve in said delivery line also connected lto beoperated by the. rearward end of said Bowden wire, whereby the singlehandle at the nozzle will be effective to control the nozzle valve,`theelectric controlling switch and the'additional valve in the deliveryline. p

13'. Liquidsdis'pensing apparatus, comprising in combination with aflexible delivery hose, a nozzle valve controlling discharge from saidhose, a handle for operating said nozzle valve, a flexible powertransmission wire slidably confined to, coextensive with and carried bysaid hose, said power transmission wire being connected to be operatedby said handle, means for guiding said flexible power transmission wirefor free sliding movement in the variously flexed conditions of thehose, uninterrupted flow liquid delivery means in connection with saidhose and including electrical apparatus governing uninterrupted deliveryof the liquid in varying amounts, an electric switch for controllingsaid apparatus and means for operatively connecting the rearward end ofsaid flexible power transmission `wire with said switch, whereby thelatter will be actuated in conjunction with the operation of the nozzlevalve.

14. Liquid dispensing apparatus, comprising in combination with aflexible delivery hose, a nozzle valve controlling discharge from saidhose, a handle for operating said nozzle valve, a flexible powertransmission wire slidably confined to, coextensive with and carried bysaid hose, said power transmission wire being connected to be operatedby said handle, means for guiding said flexible power transmission wirefor free sliding movement in the variously flexed conditions of thehose, uninterrupted flow liquid delivery means in connection with saidhose and including electrical apparatus governing uninterrupted deliveryof the liquid in varying amounts, an electric switch for controllingsaid apparatus, means for operatively connecting the rearward end ofsaid flexible power transmission wire with said switch whereby thelatter will be actuated in conjunction with the operation of the nozzlevalve, said flexible ower transmission wire extending through t e hoseand thereby concealed by the hose, mechanically protected by the hosestructure and caused to closely conform to themovements-of the hose, theguide means for slidingly directing said power transmission Wire beingassociated with the hose structure to cause said .wire to follow thehose movements without,i interfering with the free sliding movements ofthe same.

15. Liquid dispensing apparatus, comprising in combination with meanscontrollable' to furnish uninterrupted delivery of liquid in varyingamounts including a liquid delivery line terminating in a flexible hoseand a liquid flow control device in the delivery line, a nozzle valvecontrolling discharge from the hose, handle means for operating saidnozzle valve, a flexible power transmission wire operatively connectedwith said handle and extending through the hose to the control meansaforesaid, said power transmission wire being slidingly guided in thehose to follow the flexing movements of the hose without binding orinterference in the free sliding movements of the power transmissionwire through the hose. i

16. In combination with a continuous flow delivery line terminating. ina flexible delivery hose having a nozzle valve, control means forgoverning rflow of liquid in the hose, handle means for operating thenozzle valve, a flexible power transmission Wire connection from saidnozzle valve actuating means to said control means, means for slidinglyconfining said flexible power transmission wire to the hose, whereby thesame will flex with the hose without binding or interfering with thefree sliding movements of the same and means at one end of said flexiblepower transmission wire for varying the effective length of the same toeffect a proper operative 'relation between the nozzle valve and thecontrol means aforesaid. 4

17. In combination with a continuous flow delivery line terminating in aflexible delivery hose having a nozzle valve,\control means forgoverning flow of liquid in the hose, handle means for operating thenozzle valve, a flexible power transmission wire connection from saidnozzle valve actuating means to said control means, means for slidinglyconfining said flexible power transmission wire to the hose, whereby thesame will flex with the hose without binding or interfering with thefree sliding movements of the same, means at one end of said flexiblepower transmission wire for varying the effective length of the same toeffect a proper operative relation between the nozzle valve and thecontrol means aforesaid, the said varying means including a screwcoupling member having a rotatable engagement on the end of the powertransmission wire.

18. In combination with a liquid delivery hose having a dischargenozzle, a handle member mounted at the discharge end of the hose, aflexible power transmission wire connected with said handle member andcoextensive with the hose, said flexible transmission wire beingslidingly guided and confined to flex with the hose without binding orhaving its free sliding movement interfered with, liquid flow governingcontrol means for ,operation by said transmission wire and a turn buckleconstruction at one end of said wire for enabling variable adjustment ofthe effective length of the transmission wire to properly relate theparts for operation in the variously flexed conditions of the hose andtransmission wire.

19. In combination with a liquid delivery hose having a dischargenozzle, a handle member mounted at the discharge end of the hose, aflexible power transmission wire connected with said handle member andcoextensive with the hose, said flexible power transmission wire beingguided and slidingl ly confined to flex with the hose without binding orrestriction, liquid flow governing means connected for operation by theopposite end of said slidingly guided power transmission wire and anadjustable screw connection at the handle member end of said flexiblepower transmission wire for enabling the effective length of said powertransmission wire to be varied for enabling proper operation of thecontrol device by the handle member in variously flexed conditions ofthe hose and transmission wire.

20. In apparatus Vof the character disclosed, the combination of aliquid dispensing hose, 4electrically operated means for governing flowof liquid to the hose, a switch for controlling said means, a valvecontrolling delivery of liquid by. the hose and operating mechanismfosaid switch and valve, including means for introducing a timed relationto throw the switch before opening the delivery valve.

21. In liquid dispensing systems, a liquid dispensing hose having a.nozzle valve, a flexible mechanical connection extending from saidnozzle valve back along the hose, flow regulating means actuated by saidflexible mechanical connection, a flow meter in service relation to thehose and means for sequentially operating said flexible mechanicalAconnection and nozzle valve arranged to delay opening of the nozzlevalve until proper meter operating pressure lias been developed.

22. In a liquid dispensing system, a liquid delivery line terminating ina flexible hose, controllable means for supplying liquid through saidline and hose, a valve controlling discharge through the hose, andoperating means for starting the liquid supplying means and opening thevalve after said means has been started, and for closing said valve andstopping said means after the valve has been closed.

23. In a liquid dispensing system, the combination of a liquid deliveryline terminating in a flexible hose provided with a nozzle valve, meansat a point removed from said nozzle valve for controlling supply ofliquid through the hose and means for effecting conjoint predeterminedsequential operation of said nozzle valve and controlling means and forcompensating for variations in the hose to thereby maintain the desiredpredetermined sequential operation of said nozzle valve and controllingmeans.

24. In a liquid dispensing system, the combination of a liquid deliveryline terminating in a flexible hose provided with a nozzle valve, meansat a point removed from said nozzle valve for controlling supply ofliquid through the hose, means for effecting conjoint predeterminedsequential operation of said nozzle valve and controlling means flexiblemechanical connecting means carried by the hose and variable to effectthe desired sequential operation of nozzle valve and controlling meansunder dilerent conditions of the hose.

25. In a liquid dispensing system, the combination of a liquid deliveryline terminating in a iiexible hose provided with a nozzle valve,meansat a point removed from said nozzle valve for controlling supply ofliquidthrough the hose, means for effecting conjoint predeterminedsequential operation of said nozzle valve and controlling means and forcompensating for variations in the hose tothereby maintain the desiredpredetermined sequential operation of said nozzle valveland controllingmeans and including flexible mechanical connecting means carried by thehose and means for varying the effective length of the same to maintainthe desired predetermined sequential operation of nozzle valve andsupplying means under different conditions of the flexible hose. v

26. In a liquid dispensing system, the combination of a liquid deliveryline terminating in a flexible hose provided with a nozzle valve, meansat a point removed from said nozzle valve for controlling supply ofliquid through the hose and means for effecting conjoint predeterminedsequential operation 'of said nozzle valve and controlling means and forVcompensating for variations in the hose to thereby maintain the desiredpredetermined sequential operation of said nozzle valve and controllingmeans and including a handle for operating the nozzle valve and. aIiexible connection with said handle and carried by the, hose. l 40 27.In a. liquid dispensing system, the combination of a liquid deliveryline terminating in a iexibleA hose provided with a nozzle valve, meansat a point removed from said nozzle valve for controlling supply ofliquid through the hose and means for effecting conjoint predeterminedsequential operation of said nozzle valve' and controlling means and forautomatically compensating for variations in the hose to therebymaintain the desired lpredetermined sequential operation of said nozzlevalve and ycontrolling means.

In testimony whereof, I aliix my signature.

GEORGE W. STEDWELL.

